Preparation of fluorinated acrylate emulsion with core-shell structure

The fluorinated acrylate latex with core-shell structure was synthesized by pre-emulsion and semi-continuous seed emulsion polymerization in which methyl methylacrylate(MMA) and butyl acrylate(BA) served as the core,and then both two with Zonyl TM served as the shell of copolymer.The effects of amount of the emulsifiers,the ratio of anionic and nonionic emulsifiers,the amount of crosslink agent(HEMA)and fluorine monomer,and the way of charge of fluorine monomer on copolymerization were investigated.The results showed that the properties of the polymer have been greatly improved,such as hydrophobic properties,thermal stability and chemical stability,with the increasing of the amount of fluorinated monomer.